SIST EN 13405:2003

Surface active agents - Determination of dialkyl-tetralins content in linear alkylbenzene by high performance liquid chromatography (HPLC)

This European Standard specifies a method for the determination of dialkyl-tetralins (DAT), being 1,4-dialkyl-2,3-dihydro-naphthalene in linear alkylbenzene (LAB) in the range of the mass fraction of 0,5 % to 10 %.

Grenzflächenaktive Stoffe - Bestimmung des Gehaltes von Dialkyltetralin in linearem Alkylbenzol mittels Hochleistungs-Flüssigchromatographie (HPLC)

Diese Norm legt ein Verfahren zur Bestimmung von DAT (Dialkyltetralin/1,4-Dialkyl-2,3-dihydronaphthalin) in linearem Alkylbenzol (LAB) im Bereich von 0,5% bis 10% Massenanteile fest.

Agents de surface - Détermination de la teneur en dialkyltétralines dans les alkylbenzenes linéaires par chromatographie liquide a haute performance (CLHP)

La présente Norme européenne spécifie une méthode de détermination de la teneur en dialkyltétralines (DAT) (1,4 dialkyl 2,3 dihydronaphtalène) des alkylbenzènes linéaires (LAB), pour des concentrations en fraction massique comprises entre 0,5 % et 10 %.

Površinsko aktivne snovi - Določevanje dialkil-tetralinov v linearnem alkilbenzenu s tekočinsko kromatografijo visoke ločljivosti (HPLC)

General Information

• Status: Published
• Publication Date: 31-Jan-2003
• ICS: 71.100.40 - Surface active agents
• Technical Committee: KDS - Cosmetics, chemical disinfectants and surface active agents
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2003
• Due Date: 01-Feb-2003
• Completion Date: 01-Feb-2003
• Ref Project: EN 13405:2002 - Surface active agents - Determination of dialkyl-tetralins content in linear alkylbenzene by high performance liquid chromatography (HPLC)

Relations

• Refers: SIST EN ISO 3696:1998 - Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
• Effective Date: 28-Jan-2026

Overview

SIST EN 13405:2003 is a European standard published by the Slovenski inštitut za standardizacijo (SIST) that provides a reliable method for the determination of dialkyl-tetralins (DAT) content in linear alkylbenzene (LAB) using high performance liquid chromatography (HPLC). Dialkyl-tetralins, specifically 1,4-dialkyl-2,3-dihydro-naphthalene, are significant impurities in the production of LAB, which is widely used as a raw material in the manufacture of surface active agents (surfactants) for detergents and cleaning products. The method defined in this standard allows for the quantification of DAT in LAB at a concentration range of 0.5% to 10% by mass.

Key Topics

• Analytical Technique: Utilizes isocratic HPLC with micro-particulate silica columns and UV absorbance detection (254 nm), ensuring sensitive and selective measurement of DAT impurities in LAB.
• Calibration and Quantification: Employs a modified external standard technique, using tetrahydronaphthalene (THN) as a reference compound to estimate DAT concentrations due to the unavailability of pure DAT standards.
• Sample Preparation: Involves precise weighing and dilution of samples in 2,2,4-trimethylpentane (iso-octane) and the use of appropriate filtration steps to ensure accuracy.
• Precision and Reproducibility: Method precision has been validated through interlaboratory testing, with repeatability and reproducibility limits provided for different concentration ranges, ensuring consistent and reliable results.

Applications

The standard offers practical value to several industries and laboratories where controlling impurity profiles in LAB is critical:

• Surfactant Manufacturing: Ensures the quality and performance of surface active agents by accurately monitoring DAT impurities, which can affect product effectiveness and regulatory compliance.
• Quality Control and Assurance: Provides pharmaceutical and chemical laboratories with a standardized method for determining DAT content in LAB, supporting routine quality checks and certification processes.
• Environmental Compliance: Helps manufacturers and quality assessors meet international regulations concerning chemical composition and environmental safety of detergents and cleaning agents.
• Research and Development: Supports chemical process optimization and the development of higher-purity LAB products by enabling precise impurity tracking and removal strategies.

Related Standards

Organizations implementing SIST EN 13405:2003 may also benefit from familiarity with the following related standards and guidelines:

• EN ISO 3696:1995 - Water for analytical laboratory use - Specification and test methods
• UOP Method 673-88 - Linear alkylbenzene isomer distribution in detergent alkylate by gas chromatography (referenced for determining carbon number distribution in LAB samples)
• ASTM D 4307:1994 - Practice for preparation of liquid blends for use as analytical standards

These documents, in conjunction with SIST EN 13405:2003, support laboratories in maintaining the highest standards for analytical accuracy and product quality when working with surface active agents and related chemical substances.

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Keywords: dialkyl-tetralins (DAT), linear alkylbenzene (LAB), surface active agents, HPLC, impurity determination, surfactant quality control, SIST EN 13405:2003, European standard, calibration, tetrahydronaphthalene, analytical method, detergent production, chemical analysis.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Grenzflächenaktive Stoffe - Bestimmung des Gehaltes von Dialkyltetralin in linearem Alkylbenzol mittels Hochleistungs-Flüssigchromatographie (HPLC)Agents de surface - Détermination de la teneur en dialkyltétralines dans les alkylbenzenes linéaires par chromatographie liquide a haute performance (CLHP)Surface active agents - Determination of dialkyl-tetralins content in linear alkylbenzene by high performance liquid chromatography (HPLC)71.100.40Površinsko aktivna sredstvaSurface active agentsICS:Ta slovenski standard je istoveten z:EN 13405:2002SIST EN 13405:2003en01-februar-2003SIST EN 13405:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13405December 2002ICS 71.100.40English versionSurface active agents - Determination of dialkyl-tetralins contentin linear alkylbenzene by high performance liquidchromatography (HPLC)Agents de surface - Détermination de la teneur endialkyltétralines dans les alkylbenzènes linéaires parchromatographie liquide à haute performance (CLHP)Grenzflächenaktive Stoffe - Bestimmung des Gehaltes vonDialkyltetralin in linearem Alkylbenzol mittelsHochleistungs-Flüssigchromatographie (HPLC)This European Standard was approved by CEN on 23 October 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13405:2002 ESIST EN 13405:2003

Method of determination of the carbon number distribution of the LAB sample(UOP
Method 673-88).11A.1General.11A.2Principle.11A.3Reagents.11A.4Apparatus.11A.5Procedure.12A.5.1Chromatographic conditions.12A.5.2Determination.13A.5.3Time for analysis.14A.6Calculations.15A.7Precision.15A.7.1Repeatability.15A.7.2Reproducibility.16Bibliography.17SIST EN 13405:2003
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